The good fortune of a hole in one presumably (6,2,4)
I believe the answer is:
stroke of luck
'a hole in one presumably' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'the good fortune of' is the wordplay.
I cannot quite understand how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found in the answer.
'good' could be 'ok' and 'ok' is found within the answer.
'fortune' could be 'luck' (synonyms) and 'luck' is located in the answer.
'of' could be 'o' and 'o' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for stroke of luck that I've seen is " It is fortuitous and fortunate".)